/** Redis caching for cross-pod SSR module sharing */
/** Register a write started without an owner awaiting it. */
export declare function trackBackgroundWrite(write: Promise<unknown>): void;
/**
 * Wait for every tracked background write to settle.
 *
 * Loops because a settling write can register another one; the set is empty
 * only when nothing is left in flight.
 */
export declare function drainBackgroundWrites(): Promise<void>;
/** Initialize distributed caching for SSR modules */
export declare function initializeSSRDistributedCache(): Promise<boolean>;
/**
 * Report whether initialization actually resolved a distributed backend.
 * Stays false when the process runs on the in-memory backend, where
 * `initializeSSRDistributedCache` is never called.
 */
export declare function isSSRDistributedCacheEnabled(): boolean;
/**
 * Get code from distributed cache with automatic detokenization.
 * The TokenizingCacheGateway handles replacing __VF_CACHE_DIR__ tokens with local paths.
 */
export declare function getFromRedis(cacheKey: string): Promise<string | null>;
/**
 * Store transformed code in distributed cache with automatic tokenization.
 * The TokenizingCacheGateway handles replacing absolute file:// paths with __VF_CACHE_DIR__ tokens.
 */
export declare function setInRedis(cacheKey: string, code: string, options?: {
    isProduction?: boolean;
    ttlSeconds?: number;
}): Promise<void>;
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